Now, we've all seen images of original documents that are festooned with various mysterious marks as enumerators marked up household returns perhaps or Griffith's field agents doodled in their field books. Often, we get annoyed as something important may have been obscured or made indistinct. Not so fast, I say, sometimes those extraneous scribblings might just help you. Let me illustrate with the examples I found recently in those Will Calendars.
Sarah Jane Hopkins had been living with her widowed elder sister, Susan, when she died in 1914. Susan had lost her husband, William Stevenson, 6 years previously. Both William and Sarah had left wills that were proved in the Principal Registry in Dublin. Here are the calendar entries for both of them.
If you've already perused my page of guidance on post 1858 wills referenced in green above, you will know that this code refers to a catalogue entry in the Testamentary series at the National Archives of Ireland. This means that there should be a copy of the will lodged with them. Sure enough, when I consulted the Index to Testamentary Records in the Public Record Office, Dublin, 15th-20th Century online, I found the following cards for each of these wills (click to enlarge.)
Perhaps I just got lucky with these 2 calendar entries, but you never know what might turn up in your own research. So, if you think you can detect a pencilled entry in the Will Calendars that look like these codes, then be sure to follow it up.
Let me know if you get lucky!